Put sugar and water in a pan, and start cooking over medium heat.,Melt the sugar while shaking the pan occasionally.,At first, there will be fine bubbles on the surface, which will change to big bubbles.,______,When it's smoking slightly and as brown as you like, take the pan off the heat.,Have the boiling water ready to go, and add it all at once.,The caramel may splatter, so I recommend doing this step in the sink.,If you add the boiling water through a sieve that covers the pan as shown here, the sieve will prevent splattering.,This is the finished caramel sauce.,I love caramel that is quite dark.,Transfer to a jar, and refrigerator when it's cooled down.,You can store it like this for a long time.